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There are majorly three different types of OTP messages
Voice Message - These OTP are delivered through an automated Phone call. When a user chooses to receive OTP through a voice message
Push Notifications - These are also a secure way for verification and do not require users to enter code manually, these are mostly used on social media platform for performing digital activities
SMS Messages - A very common and widely used way of receiving OTP for Verification. In this you receive OTP via SMS on your phone and you need to type them manually.
There are several types of OTP (One-Time Password) texts used for authentication and security purposes. The most common type is numeric OTPs, which consist of random digits sent via SMS or email for quick verification. Alphanumeric OTPs combine letters and numbers to enhance security and reduce the risk of brute-force attacks for more read visit us professional essay help